US2251676A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thread wiper for sewing machines
Assignee: Singer Co
•
Filing: 1940-02-23
•
Granted: 1941-08-05
•
Expires: 1960-02-23
Abstract
No abstract record available.
Inventors
- 👤 Gunther Hermann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 16:24
CPC Classifications
D; D05; D05B; D05B23/00; D05B65/00; D05B73/00; D05B73/04; D05B73/12; D05D; D05D2303/00; D05D2303/20; D10; D10B; D10B2501/00; D10B2501/04; D10B2501/042
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1944-08-04 | 1945-02-03 | 1945-08-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1948-08-04 | 1949-02-03 | 1949-08-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1952-08-04 | 1953-02-03 | 1953-08-05 | $7700.00 | Window Closed / Lapsed |